Published in Transactions of the San Diego Society of Natural History, in 1931, in volume 6, pages 305-318

Published in Transactions of the San Diego Society of Natural History, in 1931, in volume 6, pages 333-352

Published in Transactions of the San Diego Society of Natural History, in 1931, in volume 6, pages 353-370

Published in Transactions of The San Diego Society For Natural History, in 1931, in volume 6, pages 389-390

Published in Transactions of The San Diego Society For Natural History, in 1931, in volume 7, pages 43-46

Published in Transactions of the San Diego Society of Natural History, in 1931, in volume 7, issue 1, pages 1-16